Bookmark Accounts
Home Articles Forums Gallery Marketplace Videos
Personalized Wooden Watches, Engraved Free

WoodCentral Forums

Knowledge You Can Build On — Est. 1998

This $39 jig will make you a WOODWORKING GOD!

Chuck adaptors

Posts

Chuck adaptors

#1

Chuck adaptors

john Lucas

When I first bought my Vicmarc chuck it came with a short adaptor but worked fine on my lathe. Then I bought a Powermatic. The Spindle is longer and this chuck didn't bottom out against the spindle face. I built a small metal ring to fit this space. When I bought a new Vicmarc chuck they had inserts that were longer and took care of this problem.

One of my newer off brand chucks also had this problem. The other off brand had the same short insert but worked fine on the lathe. The problem is the distance from the back of the chuck to the inside of the chuck. I put the chuck on my metal lathe and increased this depth so the chuck now works fine with the shorter insert.

I'm trying to decide whether to do that on the Vicmarc or just buy another long insert.

Re: Chuck adaptors

#2

Re: Chuck adaptors *LINK*

Tom Gall

John, …. I just use these spacers (for shaper cutters) from Grizzly. Easier than making your own or re-machining your inserts. Reasonable price and come in several thicknesses, although the 1/4" is probably all you need. I also use the 1" i.d. sizes for spacers on my tool rest post. If you need/want any less than 1/4" thick you should be able to get them from MSC, Enco or McMaster-Carr.


Grizzly spacers

Re: Chuck adaptors

#3

Interesting, someone might need these

john lucas

It's easy enough for me to make my own, which I have done. It's just keeping track of it. So far I have always had a magnetic light on my headstock so I just stick it to that. However I have been thinking about moving that light so then I'd have to find an easy place to keep it. There should be a vicmarc dealer at the AAW symposium so I may just pick up the right size insert.

Re: Chuck adaptors

#4

Not Vicmarc inserts?

Geoff Whaling

John, was the adaptor a standard Vicmarc insert? All of the standard Vicmarc chuck inserts that I have seen will cater for about 35-40 mm of spindle thread.

Nova / Teknatool chuck inserts were much shorter and suffered the issues you mention on most lathe spindles.

Unfortunately some manufacturers suffer a bad wrap when other manufacturers unbranded items are confused with the OEM's gear. We had issues here in Australia quite a few years back with some non OEM inserts having the two threads (inner & outter) apparently manufactured on different axes! Not good for run out!

Re: Chuck adaptors

#5

Re: Not Vicmarc inserts?

john lucas

Geoff pretty sure this is a vicmarc insert but it's very old, probably more than 15 years.